EP 2363788 A3 20150527 - Coordinate input device and display device including the same
Title (en)
Coordinate input device and display device including the same
Title (de)
Koordinateneingabevorrichtung und Anzeigevorrichtung damit
Title (fr)
Dispositif d'entrée de coordonnées et dispositif d'affichage l'incluant
Publication
Application
Priority
JP 2010044877 A 20100302
Abstract (en)
[origin: EP2363788A2] Provided is a coordinate input device including: a coordinate input unit (101) having a plurality of first detection electrodes (X_SENS) and a plurality of second detection electrodes (Y_SENS); an electrode drive circuit (102) that applies a drive signal to one or more of the detection electrodes; a capacitance detection circuit (103) that detects a capacitance of the first and/or second detection electrode; means for selecting one or more of the detection electrodes to which the drive signal is not applied from among the detection electrodes which are disposed in parallel to the detection electrodes to which the drive signal is applied, as a reference electrode; means for detecting a capacitance of the selected reference electrode; means for correcting a capacitance detection result of the capacitance detection circuit on the basis of the detected capacitance of the reference electrode; and an input coordinate computing circuit (104) that calculates an input coordinate from the corrected capacitance detection result.
IPC 8 full level
G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC (source: EP KR US)
G06F 3/0418 (2013.01 - US); G06F 3/04182 (2019.04 - EP); G06F 3/04184 (2019.04 - EP KR); G06F 3/0446 (2019.04 - EP KR US); G06F 3/047 (2013.01 - KR US); G06F 2203/04111 (2013.01 - KR)
Citation (search report)
- [IY] US 2006049834 A1 20060309 - UMEDA YUICHI [JP]
- [YA] US 2009009486 A1 20090108 - SATO HIDEO [JP], et al
- [A] US 2007120831 A1 20070531 - MAHOWALD PETER H [US], et al
- [A] WO 2009027629 A1 20090305 - QRG LTD [GB], et al
- [AD] JP 2005140612 A 20050602 - ALPS ELECTRIC CO LTD & EP 1530147 A1 20050511 - ALPS ELECTRIC CO LTD [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2363788 A2 20110907; EP 2363788 A3 20150527; EP 2363788 B1 20170809; CN 102193698 A 20110921; CN 102193698 B 20140730; JP 2011180854 A 20110915; JP 5427648 B2 20140226; KR 101159526 B1 20120626; KR 20110099625 A 20110908; TW 201211850 A 20120316; TW I465972 B 20141221; US 2011216033 A1 20110908; US 2014232684 A1 20140821; US 2016117054 A1 20160428; US 8730189 B2 20140520; US 9262027 B2 20160216; US 9495039 B2 20161115
DOCDB simple family (application)
EP 11150956 A 20110114; CN 201110023499 A 20110117; JP 2010044877 A 20100302; KR 20110004430 A 20110117; TW 100100841 A 20110110; US 201113005574 A 20110113; US 201414261070 A 20140424; US 201614989874 A 20160107